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Explain the magnetic properties of trans...

Explain the magnetic properties of transition metals.

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(i) Most of transition metal ions are paramagnetic because they contain one or more unpaired electrons.
(ii) Larger the number of unpaired electrons, higher is the magnetic moment.  
(iii) In `Fe, Co and Ni`, the paramagnetic behavior is highly pronounced. Hence they are ferromagnetic.  
(iv) `Zn, Cd and Hg` have no unpaired electrons. Hence they are diamagnetic
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OSWAAL PUBLICATION-D - BLOCK ELEMENTS F - BLOCK ELEMENTS -TOPIC-1 (D - BLOCK ELEMENTS, THEIR PROPERTIES AND COMPONDS)(SHORT ANSWER TYPE QUESTIONS - I)
  1. Explain the variation in the oxidation states of 3d-block elements.

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  2. Why are the compound of transition elements coloured?

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  3. Explain the magnetic properties of transition metals.

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  4. d-block elements form complex compounds, Give reason.

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  5. Transition elements show high melting points. Why?

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  6. Explain briefly how +2 state becomes more and more stable in the first...

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  7. Name be oxo-metal anions of the first series of the transition metals ...

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  8. What are the characteristics of the transition elements and why are th...

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  9. In what way is the electronic configuration of transition elements dif...

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  10. How is potassium permanganate ( KMnO4) prepared from MnO2 ? write the ...

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  11. Write the structure of MnO4^(2-) and MnO(4)^(-) ions.

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  12. Explain why: (i) E^0 for Mn^(3+)//Mn^(2+) couple is more positive th...

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  13. Complete the following chemical equations: (i) MnO(4)^(-) (aq) + S2O...

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  14. Assign reasons for the following: (i) Copper (I) ion is not known in...

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  15. Assign reasons for each of the following: (i) Transition metals gene...

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  16. How would you account for the following: (i) Cr^(2+) is reducing in ...

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  17. State reasons for the following: (i) Cu(I) ion is not stable in an a...

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  18. Explain giving reasons : (i) Transition metals and their compounds g...

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  19. Account for the following: (i) Cu^(+) ions are not stable in aqueous s...

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  20. How would you account for the following: (i) The atomic radii of the...

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